Barriers

When absorbers cannot reduce all the noise, barriers are needed to block the sound. Flexible mass loaded vinyl (MVL) prevents sound from traveling from one area to another. This layer is typically combined with absorbers and decoupling materials to create a composite material that can absorb and block noise all in one.

 

 

 

 

 

  • Custom barrier weights are available for each application.
  • Can be combined with wear surfaces to create floor mats that reduce sound.
  • Can be combined with sound absorber materials to create acoustical composites that absorb and block sound all in one.

 

Technical Specifications

00 – Unfaced                                                        001 – Polyester Foam

AR – 1-mil Reinforced Aluminized PET                 021 – Polyether Foam

UB – 2-mil Black Urethane                                    051 – Closed Cell Vinyl Nitrile

Typical Properties
Product VB-300 VBFF-321-41-AR-00 VBFF-321-41-UB-00 VBF-351-01-DT-00
Composite Thickness (in) 0.10 1.30 1.30 0.38
Absorber Layer Thickness (in) N/A 1.00 1.00 N/A
Mass Loaded Vinyl (in) 0.10 0.10 0.10 0.10
Decoupler Layer Thickness (in) N/A 0.25 0.25 0.25
Composite Weight Nominal (psf) 1.00 1.16 1.22 1.11
Absorber Foam Density Nominal (pcf) N/A 1.80 1.80 N/A
Mass Loaded Vinyl Weight (psf) 1.00 1.00 1.00 1.00
Decoupler Foam Density Nominal (pcf) N/A 1.90 1.90 4.0 - 6.0
Temperature Range (F) -40 to 250 -40 to 250 -40 to 250 -40 to 250
RoHS Compliant Yes Yes Yes Yes
         
Transmission Loss
125 Hz 17.00     18.00
250 Hz 19.00     18.00
500 Hz 24.00     23.00
1000 Hz 29.00     29.00
2000 Hz 34.00     34.00
4000 Hz 40.00     39.00
STC 28.00     28.00

 


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